Traction-engine.



D. 0. DE WITT.

- TRACTION ENGINE.

APPLICATION rILnn n 9, 190a.

PatentedAug. 29, 1911 3 SHEETS-SHEET 1. 1

m r V v y 0 m m a 1 q H M q 1 a 11 WITNESSES.

WITNESSES D. 0. DE WITT.

TRACTION ENGINE. APPLIGATION FILED MAYQ. 190a.

Patented Aug. 29, 1911.

B SHEE'I'HHEHT 2.

uni/runs 1). 0. DB WITT. TRACTION ENGINE.

APPLICATION FILED MAYQ, 1908.

1,002,043, Patented Aug. 29, 1911.

INVENTOR A TTOI-TNE YS UNITED WiES AsT-ENT OFFICE 'DORCY'OLEN nflvvzcvii, or maximum, semen DAKOTA.

TRACTION A prcation a May 1 -ENQINE.

Specification LettersPeteat J 29, 19

90s. semi No. 431,730.

sti'uet of steel angles and dispose themin a horizontal.plane longitudinally of the mavhine'and parallel to each other, with the legs. of the angles uppermost and "their ta hles e puu't State of-{South lJakotay-lmye invented opposing The side rails are tied t-ogetl'lei- ;g 1'iei'\-'-.a1ul l n'iproved 'lructioh-IGngine, "of 'l'lfalf' T111611:- Q S H I'd/EXtlElllitiES by a ross pghichptlm following is a. fall, elem; and mil-"of similar material, u hic-h is secured g l j ijui n I at-lts extremities to thelegs of the said '3 invention relates to inun-oi'einents in ai g les 1n aufell known manner b hymi [0 tion engines, in u'hieh a traction apron Rls g' at 'thlS location flOiThtllC side rails 1th 911 by a 1notoin mfunted upon the frame- A "and 1 and riveted thereto respectively, w-QVQlflfi is seeuredto and carried by an" endless h oolflni'ns '7) and" 3 which are bra c'ied sprpeket chain in mesh Iwith the driving hQVbI'fIQ -kGt-1 riveted to tl'lQifGTlllllltjl-lfi ofjthe l wheels, and the objects OfllTY improvements Side rails A and lflesp c y fl' fi l fi -.:.I 1 '6,i fi1.st,- to provide a traction engine which manner. Toward vthe opposite extremity of maydw;operatedawitli a minin-nun'of power, the S111: and p p nd cula y carriedby the g es i ciixlly over soft g'l'ol'ind, consistent with slde Pall-S X, and '1 are the colinnjns' 6} and -.,t,h \v eyk-flitds performing; second, to sim-- 7' l'espectivelji'. These a e I B their.

' y the construction of such engine by eurrespective side rails and extend upwardly 111g certain .of the parts usually. mployed and ;downwardly therefrom} The lowei; ex-

the manning, gear; third to provide a treiznities'mf these i'ails carr'y the balancing gl 1t;i and' d'tu'ahle construction throughoutwheels i ahd 8 and the journals In e gaml a' t (101111361lflllVtlj"Qlfitlll cost; fourth, fol, respectively. At the rearward, termit mule] sut i 111.1 tine capable ot onsidey- Hills of the 'siderails A and-1}} the'short A it; ivoqefiort 'as eonipared to the Cohuiins 8 and-"9 'ivhieh are' l'espectively jgllt-gtli'fth, to provide facilities for stem riveted get-llei Tothe. upper extremity ;a-,I.=1rl. iilotiu;i i'litiz l im mmquwuqi of'the aforesaid series of colu n ns and' seant fit' ftifiltlttlltlwith freedom, by a single can-ed .to each of. the/side rails A: andl" as I. ,911; ator a d sixth, lIl .1)211t'lCNlH1i0 dis 'a-ur-re 111st described. are the obliquesuper side 3.5 u' j'th t' hedifferential gear emploved in mal'ililS B andIS 1n the: sarnevertieal plane ,(ihiuqs "of-the elassito which my invention respectively with the side rails A and 1 belongs. 1 attain these objects-by the con? and tied together by the angular mes bar stifuetionillfist-i'ated in the aecom mnying C. The lower extremities of-tlie downu' ard 3 drawings, in whiehextendil'i'g columns (3 ,anid' 'i and the jour' 1gi u-' 1 i ,sid l fi n'al "view of a nals 1, are braced respectively by the side titni engine embodying my "iuveutitfni; 9 =1 ltVGlilC-fll'SBCUOllfll elevalaonal VIJW ough the lengine on the 11113- 2---2 posit t iiii 016. i take- 913 5 ra-ining'or sill which carriesth'e running gear of the-machine. These-I prefer to eonrails A and 1 through the bijaees 4 and 5 asu-"ill be. cleaafl3j'1efelfence to Figs. 1 and' "2. Columns l are secured to each of the respective side rails A; and 1 and the 0b-" lique side rails B and 3, and rise there-from; These are tied at their upper extremities hy'a cross angle 9, and secured at 1'igl 1t a'ngles tlu-u-eto' and extending radially therei from are framing angles 2' The fi'am iug angles 2 and the Columns 1 comprise the framing for a) fiO OII' orseat. upon "ywjhieh the operator 1 or d1"ive1" is statiqnedfi The-if'ee end f the'fioon S is sv'pl braces 1 exti'emit ies ,{lti vet in'g do f ramiii "16$ an I e li 'i ij ell fir W q e ele M 35? s T". TheFidi'ihoiitfiisldetails A a.iid"'1*," tilel 1 o super jobliqueside rails B "and 3 together with their ties, columns and braces just're-i I 55 meted-thereto "asggt ferred' to, constitute the sill or framingv for the runnin gear of my improved traction engine. Tie forward end of the framing 'or sill is carried by the steering wheels 2 and 3 and axle 4 therefor. These are'carrried by a bracket 1 secured to the extremity Y (f the table of a vertical I-beam column D,

l which is provided with lugs 1"; 7 and 8, pivoted to brackets 6f and 7, carried respec- 10 tively by the cross ties C and 1 of the framing, by king-pins or bolts J'and 6. To. the upper extremity of the table or web of the I-beam steering column D is secured a horizontally and forwardly directed tiller D, to which are secured the extremities 9 of a tiller line. This is rove around therespective sheaves e and 8 carried by the framing'at transversely'opposite points in th'e'same plane and is snubbed around a spindle bobbin 7 carried by and secured to the steering rod 4. The steering rod' i is carried longitudinally and downwardly as well as rotationally by stanchions 3 and 6 rising from the floor S and the cross tie C respectively, and at its rear extremity it is secured to a hand pilot Wheel 5. The steering rigging thus described is so connected with the pilot: wheel 5, that' upon turning the same to the right, the end 9 of the tiller line willbe pulled by the winding up of this portion of the line, upon tlie'hnb or. spindle 7, and the other en,d.93. .wi;llbe-' relaxed by-.unw-indin'g therefrom. This action'f'will force the tiller D to take an angnlar position from" thatwhi'ch it had pre:-

viously assumed in "the same planelthe ef'- fect' of which will be to turn the stee'ring column D uponits king pins (5 and G to the left, and. carry with it the steering 40 wheels and axle 2", 3"and 4 respectively, whereupon when the machine is advancing over the ground; it would makeav turn to the-left. Obviously for. thesame reasons, upon tanning the pilot wheel to the left the nachine'fivonld be steered to the. right;

'lhe various arts and frames which I have just descri ed constitute what I shall denote, the running gear or chassis of my -..-iln'pro\'e d tractionengine.

0.. 'Lshall now describe the driving and tracwn mechanismof the machine. Within the framing comprising the side .a-ilsA 'and MandO, super oblique side rails B.and 3" and the "vertical col ninns con- 7 lrea ly described, is a second frame-:1.comprising the lower side --rails 2" andwkilof sii-n ilar material and form to those comprising 'thcframe of the run- .ning. gear. '.,'l"o,"-ihcse rails are riveted the rearcolhmns'2 and 3" respectively and the h.ea.d1colnmns-4 "and 5" respectively. The gsiile railS'gQ-h and F are :tied' together by the .--rea;r and head angle ticsii -and 2 respectively. Carried by thcJr-olnmns 2" and l andt'v and-5, are the upperside rails 2 to the axle 4".

driven by the motor E,

and ,3; secured at their respective terminals to each other by riveting 1n the manner already described. These several side rails and columns comprise the framing for the drlvln gear of the machine swung at its lower side rails t" and 2- to said axle, by means of the journal bearing yokes 5" and 6", bolted 0r riveted to the .under side of the said rails toward the rear thereof. The dlSpOSltlOII of the gear frame upon the axle 4 permits of a full oscillatory movement being given it in order" that it may be readily lowered or raised as will be hereinafter more fully explained. The head end of the gear frame is 'gniiled laterally by cleats 8 and 9 secured respectively to the colun'nis 4- and 5", which' slidingly anddateihlly engage thecleats Q and b carried by the vertical columns 6 and 3" rising'from the two side rails A and 1" of the sta-tionar or running gear frame. Toward the orward or head end of the gear frame and secured to the under side of the side rails 2 and 4', are the journal bearings and yokes 5" and 6", which carry the transverse shaft 2, to which is keyed or otherwise secured a sprocket wheel 1.

To the driving axle 4-"- is similarly secured the main drivlng sprocket9 which in turn is driven by a reduction sprocket E secured The drl've of the sprocket E is effected through the sprocket chains and gear S'Zreductionsprocket 7' carried by the axle bearings side frames 2 and 4?.

3 and by the yokes and journal J secured to the lower-sides of the To the shaft 3'. vis

keyed or otherwise secured the further reduction sprocket 6", which is connected by a sprocket, chain 5 with a jack shaft (i, as will he more fully described hereinafter. -Carried by the gear frame I is a super frame of smaller dimensions than either of the two frames hereinabove dcsc1.'ihed,' andconsists of the side frames 41 and 5" of an I-beam formation, carried at. their terminals by the. transverse I-bealns a and q. These rest upon and aresceurcdto the lip-- and 3 of thc'gear flttltlQ. this super frame carries the motor or onginc l) and the jack shaft and its cooperhating parts, and I shall refer to it tlHllN}. oiline frame. The motor E, in the "instance llhist'rated, re resents a two-cylinder motor of the intcrna combustion type. and it shall occasionally throughout this specification refer to the same as af asolcne cngineor motor. The gasolcnc motor is carricdff by the engine frame and "secured thereto 'in a .welL known manner; as for example, the

manner in which motor vehicle eng nes are turns the bell crank lever to its normal position, disengaging the clutch 9 from the wmrllass it and engaging the shoe g vlt-h said windlass when the I'OttttIOII'Of Windlass will be stopped and the frame held raised.

To lower the gear frame therod 1 f is pulled to move the bell crank lever such a distance as to disengage the shoe 9 from the Windlass 1, but not far enough to-engage the clutch 9 with the Windlass or-to permit the bolt 5* to engage the arm 5". This movement of the bell crank lever allows the Windlass to run free, wh reupon the hal "ard 2 will unwind fronr'tne Windlass anc the gear frame will fall until arrested by the idle sprocke coming ,in' contact with the ground. To 'operate my improved traction engine, the apron may be lowered as just described,

which is preferable for heavy hauling, es-

pecially over soft ground orsnow, and upon starting the gasolene engine in the usual manner and clutching the shaft 1 by the clutch M, in a custt'unarymanner, the saidshaftwill. be setinto rotation for forward movement of the machine, whereupon the jack shaft G will be driven by the'bevel gear and pinion 2 and 3 and thesprocket 4 will communicate this motion to the driver ti" throzigh the chain 5 whichin turn will drive the sprocket E through the chain 8' and connected sprocket 7,and

- finally through the driver 9 to the tractionapron comprising the endless sprocket chain ctaud the transverse channels f carr ed t h ere-. by. The operator stationed on the platform S, in pilotmgthe machine over the ground,

when. desirous of making a turn with facility, first pulls the knob F of the rod 1,

whereupon the clutch or brake 9* will en-.

gage the housing It of the capstan or windlass 3"and drive It. thus winding up the halyard 2", This Wlll swlng the gear-frame up,

carrying with it the forward end of the traction-amen aforesaid, and upon rrlcas; ing the pnll-rml 1 the clutch 9 -w1ll he again disengaged and the brake-shoe 9 will be set'against the outer periphery ofthe housing 1", to maintain the position ofthe gear-frame.

Having thus described my invention, I

claim as new and desire to secure by Letters.

Patent:

:1. In a traction engine, a wheel supported main frame, a pivoted gearframe 1n themain frame, sprocket. .wheels carried by the. gear frame, a traction apron passing around the sprocket wheels, :1 motor carried by the gear frame,wmeans for operating one of the sprocket wheels. from the motor, and means operated from the motor for rais ng and lowering one end of the'gea-r frame.

2.111 a traction engine, .a. main wheel; sup mrtedframe, a driving axle, a sprocket.

whnel on the axle, agear frame mounted to swing on the driving axle, a." sprocket apron passing around the sprocket wheels, 41 motor carried by the gear frame, means for operating the drivin ;axle from the motor, and means operated by the motor for raising and lowering one end of the gear frame.

pivoted gear frame within the main frame, sprocket wheels carried by the ear frame, -meansltfor operating one of tiie sprocket wheels, a traction apron passing around the sprocket wheels, aca'pstan mounted in the gear frame, a halyardwound :upon' the capend secured to the main frame, means for nism for said capstan.-

4. In a tractionjengine 'a main frame, a pivoted gear frame with-in the main frame, sprocket wheels carried-by the gear frame, a traction apron passing around the sprocket sprocket wheels,.",.a capstan on the gear frame, a halyard havinglone end secured to the cap stan and its otherend to the main frame, a'sheave under which the halyard passes, means for operating the capstan, a clutch and brake mechanism for the capstan, means for locking the clutch and brake mechanism.

5. In a traction engine, a :wheel-supported main frame, a gear frame, a driving al\'*lp monntcd in the gear frame and upon whtch'thc said Jent'ra me swings, a sprocket wheel on the axle, a sprocket wheel 'inthe wheels. amotor carricd'by the gear frame, a shaft mounted in the gear fra-n'le'. means tor operating the said shaft from the moframe, a driving axle, agsprocketwheeluon mounted to, swing thereon, oi-sprocket wh in the front end ef t-he' gear iramqe rue ti'on apron pa ssing around-the; ,sp

- wheels, means foriraistng and lowering and 3. In a traction engine, a main frame, -a

stan passed around agsheave; and having its front end of the gear fr-an'te. -a traction apron passing around the said sprocketthe axle, a gear frame'carr'ying' the gxle-"and in the front end of the gear-frame, a traction operating the capstan, andfa clutch mechawheels, means for operating one of the i and lowering the frame, a pivoted e, comprising a mains. .frame,-balanc 1ng wheels mounted 1n: the

no? of the gear fram men as for; operating 3? A tor mcans for operating the-driving axle from the shaft ofthc gear f ramc, and nieans means for operating the steering frame.

the driving axle, a wheeled steering frame one of the sprocket wheels from the jack shaft, and means for raisingand lowering the gear frame from the jack shaft.

In testimony xrhere'of I have signed my 1 name toihis spec fication in the presence of two subscribing witnesses, V

.DORUY OLEN DE \VITT Witnesses: 'l 1 J. B. RoMANs;

P. Lyons."

pivoted to the front of the main frame, and

8. In a traction engine, a main frame, a pivoted gear frame within the main frame, sprocket Wheels carried by the gear frame, an apron passing a1'0u11d' said sprocket wheels, :1 motor frame carried by the gear frame, amotor on the said frame, a jack shaft mounted on the motor frame and operated by the motor, means for operating 

